package com.lxp.common;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import java.sql.SQLIntegrityConstraintViolationException;

/**
 * @author lxp
 * @Motto 每天一行小代码，健康幸福学JAVA：
 * @create 2022-08-23 19:59
 * @Description: 全局异常处理器
 */

@ControllerAdvice(annotations = {RestController.class, Controller.class})
@ResponseBody
public class GlobalExceptionHandler {

    /**
     * 添加重复 异常处理方法
     * @param ex
     * @return
     */
    @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public R<String> exceptionHandler(SQLIntegrityConstraintViolationException ex){
        if (ex.getMessage().contains("Duplicate entry")){
            String[] split = ex.getMessage().split(" ");
            String msg = split[2] + "已存在";
            return R.error(msg);
        }
        return R.error("未知错误");

    }

    /**
     * 菜品删除 关联 异常处理方法
     * @param ex
     * @return
     */
    @ExceptionHandler(CustomException.class)
    public R<String> exceptionHandler(CustomException ex){
        return R.error(ex.getMessage());

    }
}
